Angle-iron cutter



N. KRUMP ANGLE IRON CUTTER Fifan. 18, y1925 5 sheetssh'eet' 1 April 21,192s.

N. KR'UMP ANGLE IRON CUTTER Fil'daan. 18, 1925 s sheet-sn'eet A2`Patented Apr. "L21, 1925.

LJN-1ra ferrare- N N i 1,534,274 Parra referee.

p Vmciaviur, or Carmedia-Liners.

` ANGLE-IRON" cn'rrnn. .y l

\ TofaZZ` whom t may conce/m:

` Be it lrnown thatfI, NICKRUM'ma citizen of the United States, andaresidentof Ghicago,` in thecounty of Cool; and Statelof flllinois, haveinvented certain new4 and use* inl Improvements in Angle-Iron Critters,of which `the 'liollw1`ng, whentalrenin connection withthe drawings iaccompanying and forming a part hereof, isa full and`-ce1npletespec'iication.` i

This inventien" Vrelates t'o a machine whereby abaroff angle iron may belcut inV `tv`v'o-,=a1`id alsol whereby` a section may be cut yjoutefioneiiange of'abar `o--angle iron.

` Ainongthe objects ofthis invention is'to obtain t"machinef which "willcut a bar of angleironin two,`or cut apiece on" from a bar-fofangleiron, without distorting the flanges or changing' the relativeposition ot said langes, 1n either the bar or in the "piece which isfcuttherefrom; and afurther object ofthe machine "isfto obtain meansVwhereby a section of oneilange vof avi-bar of angle iron may be cuttherefrom, the sides l'ofV said lcutout sectionusually meetingatanangle' of approximately ninety degrees, whereby thenncut iange ofsaidbarmay be `bent to "an angleofapproximately"ninety' degrees,bringingtheedges ofthe `flange which res` "main aftersaid section `iscutvtherefrom into contact, or substantially se.` A further object `ofthev invention is to` obtain a machine for the purposes recited whichfis simple in construction, durable, not liable-to break or get outlo1`order; and economicallymade. I have lllustratedfa machine embodying.Vthis invention 1n the drawings referred to, in y whichl U U Fig. i. l is'aside .elevation Fig. 2 `is an end elevation on lineQi-Qoli Fig. l,viewed as indicated by: arrows. y

Fig.` 3 is anend elevation, on line ,B--Bof Figa l, viewedas indicatedby arrows.

Fig. 4 is a top plan view, with thehandle of the machine removed. h

. Fig. 5 is a vertical section on line 5-5 of'V Fig. 2, with the handleremoved.

And Fig. 6 is a horizontal section on line 6 6 of 5, viewed as indicatedby arrows. i

Areference character applied tofdesignate a given part indicates saidpart throughout the several gures of the drawings wherever the sameappears.

A, A, represent side plates which are, re`

y spectivelyprevided with anges er, a, at the' lower endsthereof, `saidflanges being pro-` i vide-d with aoerturesaa' a' `throu `h which boltsor lag `screwsV may be extended to secure the machine` to asuitablebase. The plates iA, A, are held in spaced relation by theseparator A", andbolts a", a'p', which-extend Vthrough said plates andseparator.` B,

D, D, f` represent geared represents a gear pinion, theteeth whereofintermesh with the'teeth" A', A', and D', D". Gr H represent a handle"which is preferably made of separable parts; the part G being inade oftwo-pa"rts which are duplicated; each `odi saidpartsbeing provided atthe lower ends thereof with g', and g g represent bolts by means ofwhich the sides of the` apertures g, g/,yare

brought into elose contact with the teeth of said 'pinion F. i The partH of said handle G H, preferably consists'of a pipeo'r tube, which isinserted betweenlthefupper ends of parts G,l G, and said; endsrinlysecured thereto by bolts 7i, 7L, extending through apertures providedtherefor in. the upper endsof said parts. A

h By turning the handle or left, asgviewed in Fig. `1, the pinion F isturned and because off` the` teeth of said pinionbeingintermeshed withthe teeth A',

`apertures g, 9,1 Vwhich it overtheteeth of pinion F; said ,i lower endsare also provided with 'slots g',

e n te the night f A', of sidesA, A, said :pinion will travel i alongsaid upper end of said side plates. At the same time the teeth of saidpinionbeing engaged with the teeth D','D', of racks D, D, said rackswillbe moved in the same direction that the pinionmoves, thereby movingthe upper ends of levers B, B', in the same direction, said leversturning on pivots b, b', respectively.` y h The levers iB, B', beingmounted on pivots b, b', land the racks D, D, Vbeing mountechas recited,on pivots E, E', at the upper ends of Vsaid levers B, B', the teeth D',D', oisaid racks D, D, will describean arc, in their travel, which `issubstantially parallel with ifi the are in which the teeth A', i arepositioned, for the limited movements of said racks to the right or leftfrom the position illustrated in Fig. l, which is required in theoperation of the machine, so that the pinion F is not bound between theteeth i and D', but works freely to permit its travel to the right orleft, on the upper ends of the side plates A, A, and the travel. of theracks D, l), as described.

The lever B is extended to the left of pivot o, as the machine isillustrated in Figs. l and 5, and I represents a die which is secured tothe lever B by plates J, J, and bolts z', if, K, K, represent dies whichare secured in position in suitable relation to die I, between plates A,A, as by bolts 7c, 7c. Then the levers B, B' are moved to the left, asabove described, the die I is moved down to and a slight distancebetween, the dies K, Ii, to obtain a shearing cnt on an angle bar placedbetween said dies, both edges of die I being cutting edges; and aportion or section of said angle bar corresponding with the distanceapart of the cutting edges of said die I. By thus cutting a section outof an angle bar which is being divided into two parts by the machine, Itind that no distortion is produced at the end of either part of saiddivided bar. The lever Il', at the lower end thereof, is extended to therightof pivot (as viewed in Figs, l and 5), and L represents a die whichis secured to said lever, by bolts Z, Z. rIhe side plates A, A, areprovided with projecting tongues near the lower ends thereof on theright hand sides thereof as viewed in Figs` l and 5, and said tonguesare bent as at fm, in, to obtain the ends M, M, (sce Fig. G), and Ilrepresents an angle iron which is secured rigidly to said ends M, M, bybolts n, n. 0 represents a die the inner edges whereof are cuttingedO'es, and are placed in suitable relative position to the cuttingedges of die L. Die O is held rigidly in place by bolts G', O', whichextend through angle iron N and into said die.

Then the handle G I-I, is moved to the right, as viewed in Fig. l, thelevers l5, B', are moved to the right, by the pinion F engaging withteeth A', A' and the teeth D', D', as hereinbefore describen, and thedie Il on lever B', is moved downward so that a bar of angle iron placedon the upper edge of angle iron N, with one flange of said bar extendingunder the die Il, as indicated by broken lines P in F ig. on thedownward movement of said die a "ion of l flange corresponding in shapewith the shape of the cutting edges of the dies O and L, is cuttherefrom.

lVhere the cutting edges oil dies L and C' are at substantially rightangles, as illus-- trated in Fig. 6, the uncut flange of said bar may bebent to an angle of ninety degrees, to bring the edges of the eut, madeas last above described, into contact, where the)Y may be welded, ifdesired.

The cutting out of a section from one flange of an angle iron bar, asabove described, made when a rectangular frame is desired. By varyingthe angle formed at the meeting of the cutting edges of dies Il and C',a suitable section will be cut from one flange of an angle iron bar topermit said bar to be bent to form a frame with more than four sidesthereto and with the ont edges meeting so they may be welded together.

I claim:

l. Pivotally mounted levers, geared raclis mounted on pivots on theupper ends of said levers, in conlbination with rigidly mounted gearteeth in spaced relation to the path ol' travel of the teeth of saidracks, a pinion positioned between said .y mounted gear teeth and thegear teeth of said racks and means to turn said pinion.

Pivotally mounted levers, connections, respectively provided with a gearrack, mounted on the free ends of said levers, to control correspondingangular movement thereof in eon'ihination vith rigidly mounted gearteeth in spaced relation to the path of travel of the teeth of saidracks, a gea' pinion positioned between said rigidlyv mounted gear teethand the gear teeth of said racks and means to turn said pinion.

NIC KRUMP.

lVitnesses Blass BROWN, @Harnais TUnNna InowN.

